I want to enable google bbr on my VPS. But I don't know this feature is integrated on linux kernel or not. How can I check it?
You can check your system conf by command
sysctl -a | grep tcp_congestion_control command, your can check your current tcp_congestion_control algorithm.
If your system supported bbr, the result will like this:
net.ipv4.tcp_congestion_control = bbr
Below command used to find the available tcp congestion control algorithms supported.
bic reno cubic
2. This command used to find which tcp congestion control configured for your Linux.
3. Below command is used to change to desired one from the available list.
sysctl -w net.ipv4.tcp_congestion_control=bic